Question upgrading from 720p

[GeneralMercer]

switching to 1080p.And i get around 70-100 fps in apex legends in 720p(but also around 30-40 in specific areas) with apex taking 6300mb ram out of 8gb.will Apex be playable in at least 900p in new monitor?Do i need to get more ram?

 

[larsv8]

What are your full system specs?

 

[GeneralMercer]

What are your full system specs?

i5 9400f,rx 460 4gb ,8gb ram 1 tb hdd.
p.s. The fps i mentioned was in low settings .